The present invention relates to an ink composition suitable for being ejected from an inkjet marking device at an operating temperature. The ink composition comprises a water-dispersible resin and has a dynamic surface tension of below 35 mN/m and a static surface tension of above 21 mN/m both determined at the operating temperature. The ink composition may comprise a mixture of water-soluble organic solvents having a difference in the relative dielectric constant of more than 5, preferably between 10 and 50. The ink composition may comprise a polymeric cosolvent, in particular a polyethylene glycol or polyethylene glycol (di)methyl ether. The ink composition may comprise a mixture of surfactants comprising at least one surfactant of a first type selected from the group consisting of acetylene glycols and ethoxylated acetylene glycols and at least one surfactant of a second type selected from the group consisting of silicone surfactants and fluorochemical surfactants.
申请公布号
EP2823002(B1)
申请公布日期
2016.05.25
申请号
EP20130709077
申请日期
2013.03.05
申请人
OCE-TECHNOLOGIES B.V.
发明人
EVERHARDUS, ROELOF H.;VERCOULEN, GERARDUS C.P.;VAN GAGELDONK, JOHANNES F.J.;LENDERS, JOHAN P.J.;VAN ROY, ANTONIUS P.M.M.